Add shading/ directory to corpus

fx/shading/2_shading_type1.pdf

Index: fx/shading/2_shading_type1.pdf
diff --git a/fx/shading/2_shading_type1.pdf b/fx/shading/2_shading_type1.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..2fc8023234baa1d09a437a370a9077ee5bb02ca1
--- /dev/null
+++ b/fx/shading/2_shading_type1.pdf
@@ -0,0 +1,109 @@
+%PDF-1.7
+
+1 0 obj
+<<
+ 	/Type /Catalog
+  	/Pages 2 0 R
+>>
+endobj
+
+2 0 obj
+<<
+  	/Type /Pages
+  	/Kids [3 0 R]
+  	/Count 1
+>>
+endobj
+
+3 0 obj					% Page object
+<<
+  	/Type /Page
+  	/Parent 2 0 R
+ 	/Resources 4 0 R
+  	/Contents 30 0 R
+	/MediaBox [0 0 600 600]
+  	%/CropBox [0 0 400 300]
+>>
+endobj
+
+4 0 obj
+<<
+  /Shading <</Sh2 6 0 R>>
+  /Pattern <</P1 10 0 R>>
+>>
+endobj
+
+
+6 0 obj %See page 305 and page 308
+<<
+  /ShadingType 1		%Function-based shading
+  /ColorSpace /DeviceRGB
+  /Domain [-1.0 1.0 -1.0 1.0]
+  /Function [9 0 R 9 0 R 9 0 R]
+  /Matrix [72 0 0 72 0 0]	%1 inch
+  /BBox [0 0 72 72]
+ /Background [0.0 0.5 0.1]
+>>
+endobj
+
+9 0 obj
+<<
+  /FunctionType 4
+  /Domain  [-1.0 1.0 -1.0 1.0 ]
+% /Domain  [0 2.0 0.0 2.0 ]
+  /Range  [-1.0 1.0]
+  /Length 0
+>>
+stream
+{
+360 mul sin  2 div  exch 360 mul sin  2 div  add
+}
+endstream
+endobj
+
+10 0 obj
+<<
+	/Type /Pattern
+	/PatternType 2
+	/Shading 6 0 R
+>>
+endobj
+30 0 obj
+<<
+  /Length 0
+>>
+stream
+
+q
+/Sh2 sh
+Q
+
+q	
+1 0 0 1 100 400 cm
+/Sh2 sh
+Q
+
+0 0 72 72 re
+S
+
+q
+/Pattern cs
+/P1 scn
+20 300 100 100 re
+f
+Q
+endstream
+endobj
+
+xref
+
+trailer
+<<
+  /Size 0
+  /Root 1 0 R
+>>
+startxref
+0
+
+%%EOF
+